And truly will not buy any pre-package sub anymore unless I'm getting a deal, that includes the names above. Now I go custom for my sub, prefer single 15" with 4" coil. Such as; Concept 50 pound motor (I still have 1) OZ Audio power series motor (another 50+ pounder) TC sounds lms, soundstream's 70 pound motor. Pack those motors up and send over to zueslicious and oh my F*#kin GOD. Mmats competition 4k amp to push any of those subs and oh my F*+~kin dog. That setup will have bubbles cumming out of you at night, not the loudest but oh man how deeply smooth lol.